[Answered] Earth's primary energy source is A) the Sun. B) fossil fuel. C) electricity. D) ...

This topic contains a solution. Click here to go to the answer

Author Question: Earth's primary energy source is A) the Sun. B) fossil fuel. C) electricity. D) ... (Read 35 times)

Chloeellawright

Hero Member
Posts: 588

on: Jul 29, 2018

Earth's primary energy source is

A) the Sun.
B) fossil fuel.
C) electricity.
D) geothermal.

Question 2

A car's engine is 20 efficient. When cruising, the car encounters an average retarding force of 1000 N. If the energy content of fuel is 40 megajoules per liter, how many kilometers per liter does the car achieve?

A) 8
B) 10
C) 12
D) 14
E) none of the above

Need homework help now?

Ask unlimited questions for free

Ask a Question

Marked as best answer by a Subject Expert

allisonblackmore

Sr. Member
Posts: 330

Reply #1 on: Jul 29, 2018

Answer to Question 1

Answer: A

Answer to Question 2

Answer: A

Chloeellawright

Hero Member
Posts: 588

Reply #2 on: Jul 29, 2018

Thanks

allisonblackmore

Sr. Member
Posts: 330

Reply #3 on: Jul 29, 2018

Welcome

« previous next »

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Free Energy Enzymes

Historical U.S. Energy Use

Solar EM Radiation Penetration into Earth's Atmosphere

An upward-sloping spark line usually indicates a mechanical engine problem or a lean air–fuel ...

Localizing the Source of High-Frequency Sounds

Coal is used to generate electricity

Author Question: Earth's primary energy source is A) the Sun. B) fossil fuel. C) electricity. D) ... (Read 35 times)

Related Topics

Need homework help now?